Valve-control float



UNITED STATES PATENT OFFICE.

CHARLES EIMKE, OF BROOKLYN, NEW YORK.

VALVE-CONTROL FLOAT.

Application filed November 2, 1920. Serial No. 421,359.

To all whom it may concern:

Be it known that I, CHARLEs EIMKE, a citizen of the United States, and aresident of thecity of New York, borough of Brook- 1 n, in the county ofKings and State of ew York, have invented a new and ImprovedValve-Control Float, of which the following is a full, clear, and exactdescription.

This invention relates to valve control floats and refers particularlyto the float 1. construction, the same being especially designed for usein connection with the supply valves for ink reservoir tanks of largeprinting presses.

In the construction and form of floats now in general use, a great dealof difficulty has been experienced in obtaining a float which willpositively operate under all conditions due to the tendency of the floatto adhere to the gummy sediment which collects on the interior surfacesof the reservoir tank. This necessitates the constant observation of theaction of the float in order to insure its proper operation to preventan overflow and consequent loss of ink as well as the time lost incident to the cleaning up of the same.

The invention therefore contemplates and seeks for one of its principalobjects to overcome the above recited objections to provide a floatconstructed of extremely buoyant material and provided with means toprevent the sticking or adherence of the same to the gummy sediment onthe top and bottom of the tank.

Another object of the invention is to pro vide a float of the characterdescribed which is shaped in such a manner as to induce or enhance itslifting power under all conditions.

A still further object of the invention is to provide a float of thecharacter described which is comparatively simple in construction,inexpensive to produce and highly efficient in its purpose.

With the above recited and other objects in view, some of which willmore clearly appear hereafter, reference is had to the followingspecification, the appended claims and the accompan ing drawings, inwhich;

Figure 1 is a p an view of an ink reservoir, a part being broken away todisclose the improved form of float in its applied position. r

Fig. 2 is an enlarged fragmentary longitudinal sectional view throughthe tank and valve illustrating the float in side elevation.

Fig. 3 is an enlarged plan view removed.

Fig. 41 is an end view thereof.

Referring to the drawings by characters of reference, 10 designates areservoir tank having an inlet pipe 11 provided with any approved formof rotary sleeve valve 12. The sleeve valve 12 is provided with an inletopening 13 which is designed to register with the inlet opening 14: ofthe valve body 15 when the sleeve is arranged in one position; Thesleeve 12 provided with "a bifurcated arm 16 between the furcatious 17of which is arranged the float 18 which is pivotally supportedtherebetween upon the cross rod 19 which extends through the bearingsleeve 20 secured in the transverse opening 21 by the pins 22. The floatis: constructed of Balsa wood and it is of rectangular configuration.The sides 23 are vertical and the ends 24 are slightly inclined outward.The top is provided with an upper flat horizontal surface 25 havingchamfered surfaces 26 connectingthe surface 25 with the sides and ends.The bottom is provided with a flat surface 27 connected by the curvedsurfaces 28 at the sides thereof to the side walls 23. The ends of thebottom 27 are provided with beveled surfaces 29 for a purpose to behereafter set forth. The upper surface 25 and the bottom surface 27 areprovided with spaced outwardly projecting pins or screws 30 whichconstitute reduced bearing surfaces for engagement with the top andbottom of the tank whereby to reduce to a minimum any possibility of thefloat adhering to the gummy sediment which collects on the innersurfaces of the tank. By using Balsa wood, the. buoyancy of the float isincreased approximately from one third to one half over the hollowmetallic floats now employed. The wood is preferably treated with aliquid proof coating or may be covered with a fine gage sheet metal.

In use of the valve, when the ink supply is drawn or pumped off throughthe distributing conduit pipes 31, the float 18 will tie scend, thusbringing the ports 13 and 14 into register and permitting the ink toflow into the tank through the pipe 11. As-the ink flows into the tank,it will flow under the inclined surfaces 29, the curved surfaces and thebottom surface 27 to effect lifting of the float 18. The chamferedsurfaces 26 of of a float the top will afford proper drainage meansbottom of the tank to prevent the direct contact of the top or bottomsurfaces of the float with the sediment whichcollects thereon and willreduce adherence of the float to a minimum.

Whilethere has been shown and described a preferred illustration of theinvention, it is understood that the right is reserved to embodimentsother than those actually set forth herein, to the full extent indicatedby the general meaning of the terms in which the claims are expressed byvariations in the phrasing of the same.

. Having thus described my invention, I claim as new and desire tosecure by Letters Patent:

1'. As a new article of manufacture, a float for controlling the supplyvalves of ink reservoirs constructed from Balsa wood, said floatprovided with spaced pins projecting from its upper and lower surfaces.

2. A valve controlling float of the character described consisting ofBalsa wood having vertical side walls, outwardly inclined end walls,reduced fiat horizontal upper and lower bottom surfaces, chamferedsurfaces connecting the flat upper surface with the side walls, roundedside surfaces connecting the flat lower surface with the side walls andoutwardly and upwardly inclined end surfaces connecting the flat lowersurface with the end walls.

3. A valve controlling float of the character described consisting ofBalsa wood having vertical side walls, outwardly inclined end walls,reduced flat horizontal upper and lower bottom surfaces, chamferedsurfaces connecting the flat upper surface with the side walls, roundedside surfaces connecting the flat lower surface with the side walls andoutwardly and upwardly inclined end surfaces connecting the flat lowersurface with the end walls, said flat upper and lower surfaces beingprovided with outwardly projecting pins adapted to engage the top andbottom of a tank to hold the upper and lower surfaces in spaced relationthereto.

' CHARLES EIMKE.

